Broom or brush unit



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HARRY n. Niirnlor CAMBRTDGE, MASSACHUSETTS', ASSIGNORLTO. R-EILIT BROOM COMPANY, or BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS.

, BROOM OR BRUSH UNIT.

Original application No. 373,595, led

To all whom t may concern.'

Be it known that I, HARRY D. NEFF, a citizen of the United States, and resident of Cambridge, in the county of Middlesex and State of Massachusetts, have invented an Improvement in Broom or Brush Units, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings rep-resenting like parts.

My present invention relates to brooms of the sectional type, and more particularly to an improved broom unit for use in Such brooms.

In brooms of the sectionable type, considerable difficulty has been experienced in ydevising a broom unit that will be readily manufactured and assembled in the broom holder and remain in position therein. When the units are assembled in the chamber of the holder, it has heretofore been impossible to prevent undue movement of the units relative to the hold-er, this movement being more apparent when the broonr is being used. In my copending application, Ser. No. 373,595, sied April 13, 1920, 0f which the present application is a division, I have shown and described an improved broomholder adapted to receive and hold a plurality of broom units such as formv the subject matter of the present invention. In making these broom units, I have deviseda binding means that is simple in character, and which hold the fibres rigidly in position, the form of binding means preventing swelling of the unit, ydue to moisture, at'the place of binding.

. The object ofimy invention, therefore, isy

an improved broom unit for sectional brooms and lthe like.

In the accompanying drawing illustrating Vthe preferred embodiment of my invention,

Fig. 1 is a side elevationg' Fig. 2 is a front eleva-tion;

Fig.v 3 is a sectional View on the line 3 3 of Fig. 2; and

Fig. 4 is a sectional view through a sectional broom.

Referring to the drawings, my improved Specification of Letters Patent. Patented Mar. 28, 1922.

April'l, 1920. Divided and this application led December 11,

1920. Serial No. 430,099.'

sleeve or band. When placed on the bundle the Sleeve or band is substantially cylindrical in shape, and I compress the sleeve or band so that it is substantially oval in cross-section, as shown in Fig. 3, grooves or V-shaped indentations 12 being formed at opposite sidesv of the Sleeve or band and which securely hold the band in position. Even though the metal or other material of which the sleeve or band is composed may be quite thin, the grooves 12 stiften the structure to such an extent that yhaving a Achamber defined by front, back and end walls, and a diaphragm 16. A cover or closure19, having the Same contour as the front wall, is used for maintaining the bundles in theV chamber.V The chambers, at

a point intermediate its upper and lower ends, is of the same shape as the band 10, viewed inside elevation, as in Fig. 1. When assembled in the chamber, the butt or stalk vends of the fibres spread out to fill the upper p'art of the chamber, while the closure or may vary the details of the construction and stantially circular in cross-sectional', one end and tampering on each side and substantially. oval shpe at the other end, and a V-shaped 1l indentation extendin longitudinally of the sleeve and on each si e thereof for compressl ing and. binding the fibres in the sleeve.

In testimony whereof, I have signed my ,na-me to this specification.

HARRY n.7 NEFF. 

